@import url("https://fonts.googleapis.com/css2?family=Popins:wght@300;400;500;600;700;800;900&display=swap");
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins',sans-serif;
}
body{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #acbaca;
}
.clock{
    position: relative;
    width: 300px;
    height: 300px;
    background: #c9d5e0;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50px;
    box-shadow: 30px 30px 30px -10px rgba(0,0,0,0.15),
    inset 15px 15px 10px rgba(255,255,255,0.75),
    -15px -15px 35px rgba(255,255,255,0.55),
    inset -1px -1px 10px rgba(0,0,0,0.2);
}
.clock::before{
    content: '';
    position: absolute;
    width: 4px;
    height: 4px;
    background: #e91e63;
    border-radius: 50%;
    z-index: 100;
    box-shadow: 0 0 0 1px #e91e63,
    0 0 0 3px #fff,
    0 0 5px 5px rgba(0,0,0,0.15);
}
.clock .numbers{
    position: absolute;
    inset: 35px;
    background: #152b4a;
    border-radius: 50%;
    box-shadow: 5px 5px 15px #152b4a66,
    inset 5px 5px 5px rgba(255,255,255,0.55),
    -6px -6px 10px rgba(255,255,255,1);
}
.clock .numbers span{
    position: absolute;
    inset: 5px;
    text-align: center;
    color: #fff;
    font-size: 1.25em;
    transform: rotate(calc(90deg * var(--i)));
}
.clock .numbers span b{
    font-weight: 600;
    display: inline-block;
    transform: rotate(calc(-90deg * var(--i)));
}
.clock .numbers::before{
    content: '';
    position: absolute;
    inset: 35px;
    background: linear-gradient(#2196f3,#e91e63);
    border-radius: 50%;
    animation: animate 2s linear infinite;
}
@keyframes animate {
    0%{
        transform: rotate(360deg);
    }
    100%{
        transform: rotate(0deg);
    }
}
.clock .numbers::after{
    content: '';
    position: absolute;
    inset: 38px; /*控制彩色圆环的大小*/
    background: #152b4a;
    border-radius: 50%;
    animation: animate 2s linear infinite;
}
.clock .numbers .circle{
    position: absolute;
    inset: 0;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    z-index: 10;
}
.clock .numbers .circle i{
    position: absolute;
    width: 3px;
    height: 50%;
    background: #fff;
    transform-origin: bottom;
}
.clock .numbers .circle#hr i{
    width: 4px;
    transform: scaleY(0.3);
}
.clock .numbers .circle#mn i{
    transform: scaleY(0.45);
}
.clock .numbers .circle#sc i{
    width: 2px;
    transform: scaleY(0.55);
    background: #e91e63;
    box-shadow: 0 30px 0 #e91e63;
}
